Uppers Gun Parts

(3,549 deals total)

This BCA AR-15 complete 5.56 NATO rifle length upper has a 16" heavy barrel with a parkerized straight fluted finish, and features a 1:9 twist rate, with a carbine length gas system. It includes the new 11.5" MLOK handguard, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 675N-UASCH556CHB1619PF-12M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:9 Finish Parkerized

Upgrade your shooting experience with the Tacfire 4" .45 ACP Complete Upper Assembly. Amplify your precision and performance utilizing an upper assembly that is expertly designed for maximal functionality. Dive into a world where impeccable features and craftsmanship merge, ensuring precision and trustworthiness in every shot. Take your shooting experience to new heights with the Tacfire 4" .45ACP Complete Upper Assembly. Details: A fully assembled upper designed for .45ACP cal, delivering enhanced shooting capabilities

Our M5 receivers are engineered to match flawlessly, providing the operator superior performance and accuracy in a durable and dependable platform. Upper Receiver Features: Platform: M5 (.308) Material: Machined from 7075-T6 forged aluminum Coating: OD Green Cerakote (more info on Cerakote) M4 Feedramps .2795" takedown pin holes (DPMS size) AR 308 High Profile (.210) Tang Accepts standard DPMS .308 components Laser engraved T-marks Includes Port Door and Forward Assist Lower Receiver Features: Platform: M5 (.308)

The Aero Precision M5 (.308) Stripped Lower Receiver is a high-quality component designed specifically for building .308 caliber rifles. Crafted from 7075-T6 aluminum, this stripped lower receiver ensures exceptional strength and durability for reliable performance. Featuring a distinctive Kodiak Brown anodized finish, this receiver offers a unique and visually appealing appearance.

Davidson Defense "Douglas" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 7.5"" 4150 CMV Nitride 1:7T 7" M-Lok Davidson Defense Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Fayetteville" AR-15 Rifle Featuring Davidson Defense Upper .350 Legend 16" 4150 CMV Manganese Phosphate 1:16T 15" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: .350 Legend / 9x43mm

Caliber The 9x19 Or 9mm Caliber Is One Of The Most Popular Calibers Available. It's Versatile, Low Recoil, And Is Suited For A Lot Of Different Scenarios. It's A Highly Popular Self Defense Round, Range Round, Handgun Round, And Pistol Caliber Carbine (PCC) Round. With This Upper Build Kit, Your Rifle Will Look Good, Feel Good, And Your Recoil Will Be Very Manageable. PI-RC-9MM-47150

Want to see ALL of our Gun.Deals Exclusive Prices? CLICK HERE TO CHECK OUT ALL THESE DEALS SPECIFICATIONS: Brand: Davidson Defense Model: 'Shovelhead' AR-15 Stripped Billet Upper Receiver Platform: AR-15 Type: Billet Material: 7075-T6 Style: Mil-Spec Enhanced Caliber Compatibility: Standard Rifle Allows Anti Rotation Tabs: No Upper Section: Picatinny Rail Finish: Anodized Forward Assist Compatible: Yes Forward Assist Pin Type: Roll Pin Dust Door Compatible: Yes Color: Black

Davidson Defense "Drip Check" AR-15 Rifle Featuring Davidson Defense Upper .223 Wylde 16" 416R SS Nitride 1:8T 15" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Parts Kit) Caliber: 5.56x45 NATO / .223 Remington

 Ar15 upper. Assembled and ready to drop on your Ar15 lower and go. - 7.5" 4150 Chrome moly barrel - 5.56/223 Chamber - 1/7 Twist - 1/2-28 threads - a2 flash hider - .750 gas block - Pistol gas  - 7" mlok free float rail - 7075-t6 Mil spec aluminum receiver - Dust cover, forward assist - Rail along top for optics mounting Note: blem items may have small cosmetic defects such as scratches or scuffs that will not hinder performance  

Description

This combo kit comes with a 9mm Right to Bear Barrel and a SlickSide 9mm (.22LR compatible) upper receiver. The Right To Bear 9mm Barrel is machined in house on state-of-the-art CNC machines and are thoroughly inspected at multiple stages of the build process to ensure quality. This barrel is machined from 4150 Chrome Moly Vanadium Steel and has a 1:10 twist rate. Available in multiple thread pitches. The final process is a salt bath Nitride finish for an added layer of protection.The RTB Upper is made from forged 7075-T6 aluminum and is Hard Coat Anodized.

This Bear Creek Arsenal AR-15 Complete .223 Wylde Side Charging pistol upper has a 10.5" M4 barrel with a 416R stainless steel finish, and features a 1:7 twist, with a pistol length gas system. It includes the new 9.5" MLOK rail, a M4 flat-top 7075 billet aluminum upper receiver, a BCA Bolt Carrier Group, Flash Hider, and a right side charging (Gen 2) handle (patent protected). This .223 upper is compatible with any mil-spec AR-15 lower.  More Information SKU 9473N-UASCH223WPM410.517SS-10M3 Weight (lbs) 3.750000 Magazine Capacity N/A Length 10.5 Profile M4 Contour Twist 1:7

This BCA AR-15 complete 6.5 Grendel Slick Side rifle length upper has a 16" M4 barrel with a parkerized finish, and features a 1:8 twist rate, with a carbine length gas system. It includes a 15 1/4" MLOK rail, an M4 flat-top 7075 billet aluminum upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This 6.5 Grendel upper is compatible with any mil-spec AR-15 lower. This has the new handguard. This Slick Side upper has no forward assist or dust cover. More Information SKU 450N-UASP6.5CM41618P-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16

This BCA AR-10 complete .308 rifle length upper has a 18" parkerized Heavy barrel, and features a 1:10 twist rate, with a mid-length gas system. It includes the new 15" MLOK split rail, an M4 flat-top billet upper receiver, a BCA AR10 bolt carrier group, a flash hider, and a rear charging handle. This 308 upper is compatible with 1st gen DPMS low profile lowers. More Information SKU 499N-UA308MSC18110P-15MSR Weight (lbs) 8.000000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:10 Finish Parkerized Material 4150 Chrome Moly Vanadium Thread Pitch 5/8 x 24 Caliber .308

Description

The Aero Precision M4E1 Threaded Assembled Receiver Set in Anodized Black provides a complete upper and lower receiver set with enhanced features. The set includes a threaded upper receiver with a forward assist and dust cover, as well as a matching lower receiver. The M4E1 design incorporates a handguard mounting platform that is forged directly into the receiver, resulting in a seamless and rigid assembly. The anodized black finish adds durability and a sleek appearance.

Davidson Defense "Hollow Words" AR-15 Rifle Featuring Davidson Defense Upper .223 Wylde 16" 416R SS Nitride 1:8T 15 M-Lok Trinity Force Freefloat Handguard Complete Upper Build (Assembled or Parts Kit) Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Westek" AR-15 Rifle Featuring Davidson Defense Upper .223 Wylde 16" 416R SS Nitride 1:8T 15" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Parts Kit) Caliber: 5.56x45 NATO / .223 Remington

Stag 15 Retro Uppers are the high quality, durable, military proven A2 upper you've been looking for. Made to mil-spec standards with a removable A3 carry handle, 5.56x45mm NATO chamber 20" 1/7 chrome lined barrel, 11.5" thermoplastic handguard with double heat shields and A2 birdcage flash hider. Specifications for Stag Arms Stag 15L Retro Upper, 20in, .223/5.56mm NATO, 4140 Steel, Heavy Profile, 1-7 Twist, Rifle , A2 Front Post, A3 Carry Handle, Integrated Sight, A2 Birdcage Flash Hider: Color: Black Finish: Manganese Phosphate Fabric/Material: 4140 Steel

Davidson Defense "ELITE ODIN Works" AR-15 Rifle Featuring Davidson Defense Upper5.56 NATO 16.5" 4150 CMV Nitride 1:7T15.4 M-Lok ODIN Works Freefloat Handguard Complete Upper Build (Assembled or Parts Kit) Caliber:5.56x45 NATO / .223 RemingtonChambered for 5.56x45 NATO, originally derived from .223 Remington, 5.56 NATO is the standardized and most popular cartridge developed for the AR-15 platform. Utilizing a .22 Caliber projectile, the low-mass, high-velocity cartridge allows superior weapon handling with manageable recoil and high accuracy.

Davidson Defense "Golden Eagle" AR-15 Upper Receiver 16" .300 Blackout 4150 CMV QPQ Nitride 1-8T Barrel Premium 15" M-Lok Handguard(Includes BCG And Charging Handle)(Assembled or Unassembled)Caliber: One Of The Most Popular Self Defense And CQB Calibers Available On The Market Is The .300 Blackout, Also Commonly Known As .300 AAC And .300 BLK. This Round Was Developed With Urban Warfare In Mind Making It A Great Option For Home Defense But Is Also A Blast To Shoot At The Range. This Round Is Known For Close Range Stopping Power And Being Really Quiet When Suppressed.

7.5″ M4 Stainless Steel Barrel AR-15 Pistol Upper with 7″ Keymod Handguard Rail

This BCA AR-10 complete upper has an 18” straight fluted barrel with a heavy profile, made of 4150 steel with a black nitride finish, Mil-Spec DPMS Low Profile, and features a 1:8 Twist Rate, and a rifle-length gas system. This Upper includes a 15” MLOK Split Rail, an M4 flat-top forged upper receiver, a BCA Bolt Carrier Group, and a rear charging handle. It is chambered in 6.5 Creedmoor and machined with AR-10 feed ramps in the barrel extension. More Information SKU 9336N-UA65CRHB1818MFFUR-15MSR Weight (lbs) 8.000000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:8

Davidson Defense 'Armada' AR-15 Rifle Complete Kit Featuring Davidson Defense Upper .350 Legend 16" 4150 CMV QPQ Nitride 1-16T 13" M-Lok Handguard (Assembled or Unassembled) Caliber Info: - Caliber Info:

Quick Overview free shipping Free Shipping applies to this item only and not the entire order. SKU: 5165450005 UPC: 5165450005 MFR#: 5165450005 Barrel Length:  16" Barrel Profile:  A2 Barrel Steel:  Chrome Moly Vanadium Barrel Finish:  Nitride Chrome Lining:  No Muzzle Thread Pattern:  1/2" x 28 Twist Rate:  1 in 7" Barrel Extension:  M4 Gas System Length: Midlength Diameter at Gas Block:  .750" Gas Block Type:  F-marked Front Sight Base Muzzle Device:  A2 -style Receiver Material:  Forged 7075-T6 Receiver Type:  M4

The Aero Precision M4E1 Threaded Assembled Receiver Set in Anodized Black, without a forward assist, offers a complete and reliable solution for AR-15 builds. This receiver set includes both the upper and lower receivers, designed to enhance functionality and simplicity. Constructed from 7075-T6 aluminum, the receiver set ensures excellent strength and durability while keeping the weight minimized. The anodized black finish not only provides a sleek appearance but also enhances corrosion resistance and durability.

Davidson Defense "Cobelodus" AR-15 Rifle Featuring Aero Precision Upper .350 Legend 16" 4150 CMV Manganese Phosphate 1:16T 12" Custom Unique AR Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: .350 Legend / 9x43mm

Product #: 466943 Manufacturer #: 223UGAS0003 This AR-STONER AR-15 Upper Receiver Assembly in 223 Wylde is being offered at an exceptional price! This AR-STONER upper features a mil-spec bolt carrier group. The upper will attach to virtually any standard AR-15 lower receiver. The AR-STONER AR-15 Upper Receiver Assembly in 223 comes complete with charging handle, shell deflector, M-LOK handguard. This AR-15 upper does not include a front or rear sight, making it a great platform for a red dot or scope (sold separately). Features Chambered in 223 Wylde M-LOK Handguard

Davidson Defense "ELITE Enforcer 13" AR-15 Rifle. ELITE AR-15 with Timber Creek Enforcer 13-inch Handguard 16.5-inch 5.56 NATO Nitride Rifle Complete Upper Build with X2 Dev Group Jackal X Charging Handle Featuring Davidson Defense Upper 5.56 NATO 16.5" 4150 CMV Nitride 1:7T 13" M-Lok Timber Creek Free Float Handguard Complete Upper Build (Assembled or Parts Kit) Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Boiler" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16" 4150 CMV Nitride 1:8T Carbine M-Lok A*B Arms Drop-In Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

This BCA AR-15 complete 5.56 Nato rifle length upper has a 18" heavy contour barrel with a stainless steel and black nitride finish with bear claw flutes, and features a 1:8 twist rate, with a mid length gas system. It includes the new 15" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 9043N-UA556MHB1818SSBCF-15M3 Weight (lbs) 5.500000 Magazine Capacity N/A Length 18 Profile Heavy Barrel Twist 1:8 Finish Black Nitride

This BCA AR-10 complete .308 rifle length upper has a 20" 416R stainless steel and black nitride finish with bear claw flutes Heavy barrel, and features a 1:10 twist rate, with a rifle length gas system. It includes a 15" MLOK split rail, an M4 flat-top forged upper receiver, a BCA AR10 bolt carrier group, a flash hider, and a rear charging handle. This .308 upper is compatible with 1st gen DPMS low profile lowers. More Information SKU 9035N-UA308RHB20110SSBCFFUR-15MSR Weight (lbs) 8.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:10 Finish Black Nitride

Caliber This Rifle Upper Build Kit Is Chambered In .350 Legend, Also Known As .350 LGND, Which Is A Straight Walled Center Fire Cartridge. Originally Developed For States That Require Straight Walled, Center Fire Cartridges For Hunting, You'll Commonly Find This Round In Bolt Action Rifles, But It Has Recently Also Been Adopted By The AR Platform. So If You're A Fan Of The .350 Legend Round, Or You Live In A State That Requires It, Your New Rifle Upper Build Kit Will Let You Use The Round While Also Staying On That Familiar AR Platform That You Know And Love. PI-RC-350-28101

This BCA AR-15 complete 5.56 Nato rifle length upper has a 16" heavy contour barrel with a stainless steel and black nitride finish with bear claw flutes, and features a 1:8 twist rate, with a carbine length gas system. It includes the new 11.5" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 9721N-UASCH556CHB1618SSBCF-12M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile Heavy Barrel

This BCA AR-15 complete DUAL Charger 5.56 Nato rifle length upper has a 16" M4 barrel with a black nitride finish, and features a 1:7 twist rate, with a carbine length gas system. It includes a 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected) and rear charge handle. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 9646N-UADCH556CM41617M-15M3 Weight (lbs) 5.300000 Magazine Capacity N/A Length 16 Profile M4 Contour Twist 1:7 Finish Black Nitride

This BCA AR-10 complete .308 rifle length upper has a 20" 416R Stainless steel straight fluted Heavy barrel with black nitride finish, and features a 1:10 twist rate, with a rifle length gas system. It includes a 15" MLOK split rail, an M4 flat-top billet upper receiver, a BCA AR10 bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 308 upper is compatible with 1st gen DPMS low profile lowers. More Information SKU 137N-UASCH308RMW20110SSMF-15MSR Weight (lbs) 8.250000 Magazine Capacity N/A Length 20 Profile Heavy Barrel Twist 1:10

This BCA AR-15 complete DUAL Charger 5.56 Nato pistol length upper has a 10.5" M4 barrel with a parkerized finish, and features a 1:7 twist rate, with a carbine length gas system. It includes a 9.5" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected) and rear charge handle. This 5.56 Nato upper is compatible with any mil-spec AR-15 lower. More Information SKU 9705N-UADCH556CM410.517P-10M3 Weight (lbs) 3.500000 Magazine Capacity N/A Length 10.5 Profile M4 Contour Twist 1:7

Davidson Defense "Sune" LR-308 Rifle Featuring Aero Precision Upper .308 WIN 20" 416R SS Stainless 1:10T 19" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: .308 Winchester / 7.62x51 NATO If you love the AR platform but are looking to use a round that reaches further and has more power, this LR-308 Upper Build Kit is a great option at a great price. Our .308 Winchester LR-308 Rifle Upper Build Kits take the hassle out of building your custom firearm. Barrel: - Barrel:

TACFIRE 16" .45 ACP Upper Receiver - BLK | FLASH CAN | 15" M-LOK | With BCG & CH Upgrade your shooting experience with the Tacfire 16" .45 ACP Complete Upper Assembly. Amplify your precision and performance utilizing an upper assembly that is expertly designed for maximal functionality. Dive into a world where impeccable features and craftsmanship merge, ensuring precision and trustworthiness in every shot.

Davidson Defense 'Heysel' AR-15 Rifle Complete Upper Build Kit Featuring Davidson Defense Upper 9mm 16" 4150 CMV QPQ Nitride 1-10T 17" M-Lok Handguard (Assembled or Unassembled) Caliber Info: - Caliber Info: Caliber The 9x19 Or 9mm Caliber Is One Of The Most Popular Calibers Available. It's Versatile, Low Recoil, And Is Suited For A Lot Of Different Scenarios. It's A Highly Popular Self Defense Round, Range Round, Handgun Round, And Pistol Caliber Carbine (PCC) Round. With This Upper Build Kit, Your Rifle Will Look Good, Feel Good, And Your Recoil Will Be Very Manageable.

Barrel Length : 14.50 Finish : Anodized Hand : Right Color : DDC Barrel Contour : Government Item Height (Inches) : 2.250 Item Width (Inches) : 2.250 Item Length (Inches) : 22.000 Cartridge : 5.56x45 NATO Make Model Fit : AR-15.Universal Item Weight (lbs) : 5.750 Gas System Length : Mid-Length Model Number : Black Folder Material : Multiple Receiver Style : Stripped Muzzle Threads : 1/2"x28 Quantity : 1 Twist : 1-7 Brownells sku: 430106391 MPN#: None

Davidson Defense "Thessalar" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16.5" 4150 CMV Nitride 1:7T 15" M-Lok Mercury Precision Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

DD Custom Arms "Exothermic" AR-15 Rifle Featuring Cobalt Kinetics Upper .350 Legend 16" 4150 CMV Nitride 1:16T Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: .350 Legend / 9x43mm

This Complete Upper includes our Quantum Handguard! Key features include the addition of built in anti-rotation tabs, removable 4-slot picatinny rail section for front sight and a 7 mounting surface for accessories. Specifications for Aero Precision M4E1 Enhanced 16in 5.56 Mid-Length Barrel Quantum Handguard Complete Upper Receiver: Caliber: 5.56x45mm NATO Barrel Length: 16 in Barrel Twist Rate: 1-7 Gun Rail: M-LOK Gun Model: AR-15 29D-URC-M4EH-APAR640104M7 Color: BlackFinish: AnodizedHandguard Length: 12 in Code:29D-URC-M4EH-APAR640104M7 MPN:APAR640104M7

"MMC 14.5" Upper Build Kit Featuring Rise Flash Hider" AR-15 Pistol Featuring Davidson Defense Upper5.56 NATO 14.5" 4150 CMV Nitride 1:7T13" M-Lok Davidson Defense Freefloat Handguard Upper Build Kit (Assembled or Parts Kit) Caliber:5.56x45 NATO / .223 RemingtonChambered for 5.56x45 NATO, originally derived from .223 Remington, 5.56 NATO is the standardized and most popular cartridge developed for the AR-15 platform. Utilizing a .22 Caliber projectile, the low mass, high-velocity cartridge allows superior weapons handling with manageable recoil and high accuracy.

SKU: 5165448932 UPC: 5165448932 MFR#: 5165448932 PSA 16" Pistol-Length 300AAC Blackout 1/8 Nitride 15" Lightweight M-Lok Upper - With BCG & CH - 5165448932 - Barrel Length: 16" - Gas System: Pistol Length - Barrel Profile: Heavy - Barrel Steel: 4150V Chrome Moly Vanadium - Barrel Finish: Nitride - Chrome Lining: None - Muzzle Thread: 5/8-24 - Chamber: 300 AAC Blackout - Twist Rate: 1 in 8" - Barrel Extension: M4 - Diameter at Gas Block: .750" - Gas Block Type: Low-profile - Muzzle Device: A2 Flash Hider - Receiver Material: Forged 7075 T6 - Receiver Type: M4

This Andro Corp Industries 300 Blackout AR-15 Complete Upper has an 10.3-inch-long Chrome Moly Vanadium barrel with a 1-7 twist rate. It includes a slim, M-LOK hand guard, to easily include your favorite add-ons to the rifle. This upper with T-marks has been made of 7075 T6 Mil-Spec aluminum, then dry film lubed to ensure corrosion resistance. Andro Corp Industries 300 Blackout Complete AR15 Upper is a dependable choice made with Mil-Spec parts and a full auto rated MPI/HPT M16 Bolt Carrier Group with nitride finish for increased reliability. Features: - 300 Blackout

This Andro Corp Industries 5.56 NATO AR-15 Complete Upper has a 10.3-inch-long Chrome Moly Vanadium barrel with a 1-7 twist rate. It includes a slim, M-LOK hand guard, to easily include your favorite add-ons to the rifle. This upper with T-marks has been made of 7075 T6 Mil-Spec aluminum, then dry film lubed to ensure corrosion resistance. Andro Corp Industries 556 Complete AR15 Upper is a dependable choice made with Mil-Spec parts and a full auto rated MPI/HPT M16 Bolt Carrier Group with nitride finish for increased reliability. Features: - 5.56 NATO - Carbine Gas System

This BCA AR-15 complete 7.62x39 rifle length upper has a 16" 416R stainless steel heavy barrel, and features a 1:10 twist rate, with a carbine length gas system. It includes a 15" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This 7.62x39 upper is compatible with any mil-spec AR-15 lower. More Information SKU 9016N-UA762CHB16110SS-15M3 Weight (lbs) 5.750000 Magazine Capacity N/A Length 16 Profile Heavy Barrel Twist 1:10 Finish Stainless Material 416R Stainless Steel Thread Pitch 5/8 x 24 Caliber 7.62x39

Davidson Defense "Counter Artillery" LR-308 Rifle Featuring Davidson Defense Upper .308 WIN 18" 4150 CMV Manganese Phosphate 1:10T 15" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Parts Kit) Caliber: .308 Winchester / 7.62x51 NATO If you love the AR platform but are looking to use a round that reaches further and has more power, this LR-308 Upper Build Kit is a great option at a great price. Our .308 Winchester LR-308 Rifle Upper Build Kits take the hassle out of building your custom firearm. Barrel:

Item #: Complete your Ar-308 build with this assembled Ar10 Upper receiver from Mid State Firearms. Features: 16″ 4150 CMV Barrel 308 / 7.62×51 5/8-24 threads DPMS compatible LR308 upper Low profile gas block, stainless gas tube Dust cover, forward assist Optional BCG and Charging Handle

This AR-15 complete upper receiver from Alpha Shooting Sports features a 16" Nitride treated barrel chambered in 5.56 NATO. The M16 bolt carrier group also features a Nitride finish and is built to withstand the rigors of excessive use with minimal maintenance. The Alpha full-length M-LOK-L handguard is free-floating and extra-light, with ample room for your favorite accessories. This Alpha Shooting Sports complete upper receiver features a 9310 MPI tested bolt assembly and has extended M4 feed ramps for reliable and consistent function.

DD Custom Arms 'Kajman' AR-15 Pistol Complete Upper Build Kit Featuring Davidson Defense Upper .223 Wylde 10.5" 4150 CMV QPQ Nitride 1-8T 10" M-Lok Handguard (Assembled or Unassembled) Caliber: This .223 Wylde Build Kit Presents The Perfect Solution To Getting That Same Versatile, Reliable Performance Out Of A 5.56 NATO Round, But From A Smaller, More Compact Package. With All The Upper Build Kit Options That We Have Here, Your Pistol Can Be Exactly As Agile, Mobile, Compact, And Loud As You Want It To Be.

Chambered in .300 AAC Blackout A3 flat-top forged 7075-T6 aluminum 10.5" 4150 chrome-moly steel barrel, nitride finish 9" free-float handguard with Hera Arms rails 5/8x24" muzzle thread for accessories M4 feed ramps 0.75" gas block Bolt carrier group and charging handle not included Item # WX2-652356 UPC: 600518151029

Caliber: 5.56 NATO Classification: Pistol Barrel: Kinetic Manufacturing 14.5" 5.56, Mid-Length, Government Profile, 1:7T, Nitride, 4150 CrMoV Twist Rate: 1:7T Thread Pitch: 1/2x28 Upper Receiver: Davidson Defense Mil-Spec AR-15 Upper w/ M4 Feedramps - 7075 T6 Aluminum Handguard: Davidson Defense 13" MLok Handguard Gas Block: Micro Low-Profile Gas Block for .750 O.D Barrel Steel Gas Tube: Mid Length Stainless Steel Gas Tube AR-15 AR-15 Muzzle Device: RISE Armament Veil Flash Hider .223/5.56, Black BCG: Recoil Technologies AR-15 5.56x45mm Bolt Carrier Group

Davidson Defense "Anti Mosaic" AR-15 Pistol Featuring Davidson Defense Upper 9mm 6" 4150 CMV Nitride 1:10T 4" M-Lok Gauntlet Arms Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

3rd Gen Tactical 'Humboldt' AR-15 Billet Upper Receiver - Black Upper Receivers mount and house the barrel, handguard, and gas system in an AR-15 or LR-308/AR-10. Mil-Spec upper receivers are made to 'Military Specification' and are meant to either match or exceed the military requirements imposed onto the design for its service rifles. Mil-Spec Enhanced upper receivers feature all of the qualities of a 'Mil-Spec' upper receiver and incorporate various minor cosmetic, and design changes, externally, while retaining all of the features and functionality of a standard Mil-Spec upper receiver.

The R-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have.

This AR15 Complete Upper Receiver, paired with the ATLAS handguard streamlines the appearance of your next AR15 build by removing the Forward Assist. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver you can maximize the weight savings for your next build. Specifications for Aero Precision AR15 5.56 Complete Upper Receiver: Color: Black Finish: Anodized Caliber: 5.56x45mm NATO Attachment/Mount Type: M-LOK Gun Rail: M-LOK Muzzle Device: A2 Flash Hider Gun Model: AR-15 Additional Features: Mid Length Barrel